SciShow
Other Worlds on Earth: Preparing for Space from Home
Other worlds don't seem very welcoming to us Earthlings, and it can be hard to practice our off-world explorations from millions of kilometers away. But Earth also has its fair share of hostile places that we can use to prepare for those...
TED Talks
TED: How we'll find life on other planets | Aomawa Shields
Astronomer Aomawa Shields searches for clues that life might exist elsewhere in the universe by examining the atmospheres of distant exoplanets. When she isn't exploring the heavens, the classically trained actor (and TED Fellow) looks...
SciShow
SpaceX's Mars Mission, and 3 Exciting Exoplanets!
SpaceX wants to go to Mars and habitable exoplanets might be closer than we think!
SciShow
We Still Can't Find the First Stars in the Universe | SciShow News
Astronomers looking farther back in time than ever before are giving us a better idea of what the early universe must have been like, and we've identified another of the mysterious ultraluminous X-ray pulsars.
SciShow
We’ve Found a New(ish) Type of Supernova
We’ve known about different types of supernovas for some time, but researchers now believe they have observed a previously unseen kind! And, sadly, the odds of life on Venus may not be as high as we once believed.
SciShow
Earth Has a New, Orbiting Disco Ball!
Earth has some new orbiters, and while one of them is vexing many scientists, another will help us learn more about our atmosphere.
SciShow
Eclipses That Don't Eclipse
Here on Earth, we’re used to seeing both lunar and solar eclipses. But further out are eclipses that don’t behave at all the way we expected them to.
SciShow
How to Catch a Supernova Rerun
On earth a sound echo lets you hear something again. Over great distances, a light echo can let you see something again, specifically an exploding star.
SciShow
Betelgeuse Isn’t Just Dim, It’s Lopsided - SciShow News
The constellation of Orion has one shoulder marked by a bright red star called Betelgeuse, but over the last year it's dimmed enough to notice with the naked eye! and mission scientists are shedding some light on how Arrokoth and other...
SciShow
5 Things We Still Don't Know About the Solar System
We've already learned a lot about the solar system, but sometimes the most fascinating things are what we DON'T know.
SciShow
Has Saturn Had More than One Ring System
Saturn’s rings might only be around a hundred million years old, billions of years younger than some astronomers have suspected, and they might not be the only rings the planet has ever had.
Crash Course
Meteors
Today Phil helps keep you from ticking off an astronomer in your life by making sure you know the difference between a meteor, meteorite, and meteoroid. When the Earth plows through the stream emitted by a comet we get a meteor shower....
SciShow
The Smallest Star in the Universe
SciShow Space takes you to the smallest star in the universe, and explains how astronomers figured out that's what it was!
SciShow
The Telescope That Revealed the X-Ray Universe
Some of the most exciting phenomena in space can’t be seen from Earth because our atmosphere soaks up high-energy light. That’s why NASA built Chandra, the most powerful X-ray telescope ever launched, and the observatory has helped...
SciShow
Asteroids to Watch Out For
Hank tells us about NASA's Near-Earth Object Program, which tracks the paths of asteroids and categorizes them according to the likelihood that they will strike the Earth at some point in the future.
SciShow
Hanny's Voorwerp: The Mystery Blue Blob
In 2007, Hanny van Arkel noticed a blue blob next to a galaxy. Eight years later, scientists are still trying to figure out how it got there.
SciShow
How Many Galaxies Are There?
We've been trying to count the galaxies in the universe since the mid '90s, but our estimates change as our tools improve. So what does our current estimate really mean?
TED-Ed
TED-ED: Should we be looking for life elsewhere in the universe? - Aomawa Shields
As the number of _potentially habitable" planets that astronomers find continues to rise, we seem ever closer to answering the question, _Are we alone in the universe?" But should we be looking for life elsewhere? If we were to find life...
SciShow
The Impossibly Huge Quasar Group
In 2013, astronomers reported that they'd found what was, at the time, the biggest thing in the known universe.
SciShow
A New, Bubbly Origin Story for the Solar System
We might be closer to figuring out how our solar system was born and NASA has two finalists for its next New Frontiers mission.
SciShow
How We Discovered the Milky Way's Black Hole
The search began with a physicist checking for sources of static on phone calls in the 1930s, but it took several decades to finally make one of the biggest discoveries in astronomy, Sagittarius A*.
Be Smart
What Color is the Universe?
When you stare up at the night sky, you might think that the universe is really black, but that's just because our eyes aren't sensitive enough to see the billions and billions of multicolored stars out there. Ever wonder why certain...
SciShow
Astronomers Just Discovered the Biggest Explosion Ever
Scientists just discovered the largest explosion ever detected, and it's thanks to the collaborative efforts of scientists from all over the world.
SciShow
The Invisible Gas That Gave Us Galaxies
More than half of all the matter in the universe is out in the dark, 'empty space.' Although it's basically invisible, the intergalactic medium has a lot to tell us about the stuff we can see.